#include"cal.h"

int main()
{
  int x=0,y=0;
  while(1)
  {
    printf("input two number:");
    scanf("%d %d",&x,&y);
    int res = MyAdd(x,y);
    printf("%d+%d= %d\n",x,y,res);
  }
 // return 0;
}
